Saw set



A. MANHART. SAW SET.

APPucmoN FILED ocr. 4. 1920.

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A. M-ANHABT.

-SAW SET. APPLICATION lFILED OCT. 4, 1920.

Patented June 20, I1922'.

2 SHEETS-SHEET 2- NETE@ STIES.

ARTHUR-MANI-IART, OF ELIZABETHTOWN, ILLINOIS.

SAW SET.

Specification of Letters Patent. Patnted June `20,' 1922.`

Application med oetoberii, 192e. serial No. 414,513. i

, To all whom t may concern:

Be it known that I, ARTHUR MANHART,

a citizen of the United States, residing atk Elizabethtown, in the county of Hardin and State of Illinois, have Ainvented certain new and useful Improvements in Saw Sets; and I do hereby declare the following to be a full, clear, and exact descriptionvof the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The object of the invention is to provide a simple inexpensive and eincient saw setting mechanism particularly adapted for use in connection with band saws, and having means of adjustment whereby it may be adapted for saws having different widths of blades and wherein the teeth are to be set at different angles or pitches; and with these objects in view the VVinvention consists in a construction and combination of parts of which a preferred embodiment is shown in the drawings` wherein,

VFigurel is a side view of the apparatus. Figure 2 is a plan view of thev same.

Figure 3 is a rear view. i

Figure 4 isalongitudinal section on the plane indicated by the lines 4-4 of Figure 2.

Figure 5 is a transverse section on the plane indicated by the line 5-5 of Figure 1.

Figure 6 is a detail view perspective of the hammer.

The apparatus consists of a base 10 preferably consisting of a solid and relatively substantial casting which carries the anvil 11 upon one end of which is pivotally mount-` ed the hammer 12 yieldingly held in an elevated position by the expansion spring 13.

Mounted for rotary adjustment in the eX- tension of the base forming said anvil is the gage 14 having the terminal discs 15 one of which carries a set screw 16 for'securing the gage in its proper or adjusted position, the discs of the gage carrying the ears 17 being-'located respectively at opposite sides of the surface of the anvil.

Mounted in advance of the front end of the anvil yis a combined eccentric gageand guard disc 18 having a spindle 19 upon which it is mounted for axial sliding movement, said disc being provided with a sleeve 20'itted upon the spindle and being yieldingly held in an elevated position, limited by the stop or head 21 at the upper end of the spindle, by a spring 22 which is coiled upon the 'spindle beneath the disc. Preferably the spindle consists of a screw which is threaded at its lower end in the upper end of a4 carrier 23 consisting of a block mounted to slide in a guide 24 in the base, a jam nut 25 being emi ployed to secure the spindle against rotary movement relativel tc ythe carrier. W'hen the device is not beingv used fork band saws the loosening of the jamvnut will ,permit of the removal of the disc and its spindle from the carrier.

The vertical movement of the carrierto effect the yadjustment yof the disc Vto securer 29 in the lower end ofthe guide in which the .carrier isV mounted, and to lock the carrierin its adjusted position a set screw 30 is employed.. 1 j f y A locking pin 32 is carried by the head 21 to engage any one of a series of sockets 33 in the Vdisk 18 to hold the latter against rotation and in any of .its adjusted positions. The disk 18 `forms a combined gage and guard for the saw blade, wherebyv the inclinationof the saw blade on the anvil may be varied to permit the teeth to be set at different desired angles or pitches, and to prevent the non-cutting edge of that portion of the saw blade lying atthe anvil from movingnpwardly when the teeth are struck by the hammer. l

In operation, the lower run of the band saw blade is positioned as shown in Figure 1, the straight edge A ofthe disk 18 being disposed next to the anvil so that said portion of the saw blade may pass slightly below the disk to position one of the teeth on blade is' suspended from a suitable overhead structure (not shown). After the position-l ing of the saw blade, the, disk 18 is depressed to unlock it and is rotated to bring the curved edge B over and in contact with the saw blade andallowed toy again lock by the action of the spring'22. The amount the disk is rotated, depends entirely at what inclination the saw, blade is to be heldin respect to the anvil. The curved edge B of the disk first engages the blade adjacent its non-cutting edge, which holds the blade at a slight inclination, but a further rotation of the disk causes the curved edge B to engage the saw blade further towards the cutj ting edge, consequently increasing the inclination of the saw blade. The varying of the inclination of the saw blade, regulates the angle or pitch at which the teeth are set.

`After the 'setting of the teeth, which eX- tend angularly in one direction from the blade, and it is desired to set the other teeth,

-the saw is removed by first rotating the disk y to bring the straight edge A opposite the an-` vil so that the saw may be lifted freely fromV the anvil. The saw isturgned inside out or reversed and replaced onythe anvil in the same manner heretofore described and the Vdisk is again rotated to occupy the same position it1 formerly had to insure the holding ofl the blade at the same inclination which permits the second set of teeth to be set at the ysame angle that the first Vset of teeth were set. VVBefore the disk is rotated to free the sa'w' blade, ythe operator notes the socket occupied by the locking pin and yafter the The eccentric mounting ofthe disk and the curved edge VB thereof, Vpermits saw` blades of different widths to have their teeth set by the device. l What is claimed is t 1. A saw setpinclu'ding an anvil, 'a gage and Vvguard element for coaction with the anvil inthe setting of a saw and engageable with the saw on the oppositeside thereof` Y to Ithe anvil, and said gage and guard element being movable into and out of the path of movement ofthe saw for'the purpose specified. i

` 2.7. A saw set including an anvil, a gage and guard element for coactionwith the anvil in the setting of a saw andv engageable with the saw on the opposite side thereof to,

the anvil, and said gage and guard element being eccentrieally mounted for movement into and out of the path of movement of the saw for the purpose specified.

, 3. A' saw set including an anvil, a gage and guard Velement forv coaction with the anvil in the setting of a saw and engageable with the saw on the opposite side thereof'to the anvil', said gage and guard Velement being eccentrically mounted for movement into and out of the path of movementof the saw for the purpose specified, and said gage and guard element'having a curvedl edge to engagethe saw to tilt it. 1

t. A 'saw set including a base having an anvil anda hammer, a gage and guard element eccentrically and rotatably mounted on the base and having a 4straight edge and a Vcurved edge',fsaid element when positioned with 'ille' Straight @des Het *the anvil' ifi adapted to permit a saw blade to be placed on and removed freely from the anvil, said Y velement when positioned with its curved edge next tothe anvil isV adapted to engage the` blade to prevent it from moving upwardly when a tooth is struckby the hammer and to permit the blade-to .be held at different` inclinations. v Y Y y t 5. A. saw set includinga base having an anvil and a hammer, an element eccentrically and rotatably mountedon ,the base and having a straight edge and a cam shaped edge,'said first edge adapted to permit a saw blade to be placed on and removed VfIfQIn the anvil, said second edge adapted to overlie and contact with the blade at different points between its cutting and non-'cutting edges..

V6. A saw set including a base havingan anvil andy a hammer, an element eccentri-k cally and rotatably mounted on'the baseandto be placed and removed from the anvil, j

said element when rotated'fto bring the second edge towards the anvil is adapted to .t

placed on and removedfrom the anvil, said` element when rotated to bring the second edge towards kthe anvil,v is adapted to overlie and engage the blade at diii'erent'points between its cutting and non-cutting edges, and

means for locking the element against rotation in any of its adjusted positions and adapted to aid a person to yagain rotate the element from one of the saw-holding p0- sitions to a' non-saw-holding position and back to the former saw-holding position.

8. A saw set including an anvil and a hammer, af pin mounted for adjustmentV relative'lyv to the hammer, and a saw gage and guard element movably mounted on the lpin for @action with' a saw blade engaged'vith the anvil. 9. A saw set including a base having an anvil and a hammer, a pin mounted for ad#` justment on the' base relatively 'tothe ham-l mer, and a saw gage and guard Yelement'rotatably and slidably mounted on the pin for. coaction with va saw kblade engaged with the anvil. v y

10.l A saw set including a base having an anvil and a hammer, a pin mounted for vertical adjustment Aon the'base relatively t0. the hammer. e ses@ and guard element rentable @ed 'Slidebly- 'lee-vete@ O11" ai@ Pia for coaction with a saw blade engaged with the anvil, means normallyy urging the element to its uppermost position, and a lock-L ing means adapted to hold said element against rotation when in its uppermost position.

Y l1. A saw set including a base having an anvil and a hammer, a substantially vertical pin mounted on the base, a gage and guard element rotatably and slidably mounted on the pin for coaction with a saw blade engaged with the anvil, said gage and guard elementhaving a straight edge and a cam shaped edge, and a locking means for holding the element against rotation and adapted to permit rotation of said element under manual influence.

12. A saw set including a base having an anvil and a hammer, a pin mounted on the base, a gage and guard element slidably and rotatably mounted on said pin for coaction with a saw blade engaged with the anvil,

said gage and guard element having a series of sockets, a second pin carried by the first pin and adapted to engage -in any one of said sockets to lock the element against rotation on the pin, and a tension means engaging said element to urge the same upwardly for causing the second pin to engage in a socket which alines therewith.

13. A saw set including a base having an anvil and a hammer, a pin mounted on the base, a gage and guard element Jfor coaction with a saw blade engaged with the anvil, said gage and guard element being eccentrically and rotatably mounted on said pin and having a straight edge and a cam shaped edge, a head on said pin for limiting the upward movement of said element, tension means engaging said element for urging the same upwardly, said element having a series of sockets, and a second pin carried by the head and adapted to engage in 'any one of the sockets.

In testimony whereof I afix my signature in presence of two witnesses.

ARTHUR MANHART. y Witnesses:

JOHN C. OXFORD, OHAs. D. LEDBETTER. 

